<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .ball {
      width: 100px;
      height: 100px;
      margin: 100px auto;
      background-color: deeppink;
      border-radius: 50%;
      animation-name: jump;
      animation-duration: 1s;
      animation-timing-function: ease-out;
      animation-iteration-count: infinite;
      animation-direction: alternate-reverse;
    }

    @keyframes jump {
      from {
        transform: translateY(400px) scale(.5);
        -webkit-filter: blur(4px);
      }
      to {
        transform: translateY(0) scale(1.5);
        -webkit-filter: blur(2px);
      }
    }
  </style>
</head>
<body>
  <div class="ball"></div>
</body>
</html>